/**
 * Tariffs Page Styles
 * Modern mobile-first design with liquid glass effects
 * 
 * Dependencies: tokens.css
 */

/* ===== Page Layout ===== */
.page-tariffs {
    min-height: 100vh;
    min-height: 100dvh;
    padding: var(--space-4);
    padding-bottom: calc(var(--space-8) + env(safe-area-inset-bottom, 24px));
    background: var(--bg-gradient);
    background-color: var(--bg-page);
    background-attachment: fixed;
    background-size: cover;
}

/* ===== Header ===== */
.tariffs-header {
    text-align: center;
    margin-bottom: var(--space-6);
    padding-top: var(--space-2);
}

.tariffs-header__title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--space-2);
    letter-spacing: -0.02em;
}

.tariffs-header__subtitle {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: 0;
}

.tariffs-header__gift-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--plan-all-soft);
    border-radius: 20px;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--plan-all);
    margin-bottom: var(--space-3);
}

/* ===== Cards Container ===== */
.tariffs-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 480px;
    margin: 0 auto;
}

/* ===== Tariff Card ===== */
.tariff-card {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    cursor: pointer;
    overflow: hidden;
    
    /* Glass effect */
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    
    /* Shadow */
    box-shadow: var(--glass-shadow);
    
    /* Transition */
    transition: 
        transform var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-out),
        border-color var(--duration-normal) var(--ease-out);
}

/* Accent line (left border) */
.tariff-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: var(--space-4);
    bottom: var(--space-4);
    width: var(--accent-line-width);
    border-radius: 0 4px 4px 0;
    background: var(--accent-color);
    opacity: 0.9;
    transition: 
        opacity var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-out);
}

/* Hover state */
.tariff-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--glass-shadow-hover);
}

.tariff-card:hover::before {
    opacity: 1;
    box-shadow: 0 0 12px var(--accent-glow);
}

/* Active/Pressed state */
.tariff-card:active {
    transform: translateY(1px) scale(0.995);
    box-shadow: var(--glass-shadow);
}

/* Selected state */
.tariff-card.is-selected {
    border-color: var(--accent-color);
    box-shadow: 
        var(--glass-shadow-hover),
        0 0 0 1px var(--accent-color),
        0 0 24px var(--accent-glow);
}

.tariff-card.is-selected::before {
    box-shadow: 0 0 16px var(--accent-glow);
}

/* === Accent color variants === */
.tariff-card--chat {
    --accent-color: var(--plan-chat);
    --accent-soft: var(--plan-chat-soft);
    --accent-glow: var(--plan-chat-glow);
}

.tariff-card--video {
    --accent-color: var(--plan-video);
    --accent-soft: var(--plan-video-soft);
    --accent-glow: var(--plan-video-glow);
}

.tariff-card--all {
    --accent-color: var(--plan-all);
    --accent-soft: var(--plan-all-soft);
    --accent-glow: var(--plan-all-glow);
}

.tariff-card--repeat {
    --accent-color: var(--plan-repeat);
    --accent-soft: var(--plan-repeat-soft);
    --accent-glow: var(--plan-repeat-glow);
}

/* ===== Card Watermark Icon ===== */
.tariff-card__watermark {
    position: absolute;
    right: var(--space-4);
    top: var(--space-4);
    width: 36px;
    height: 36px;
    padding: 8px;
    color: var(--accent-color);
    background: var(--accent-soft);
    border-radius: 12px;
    pointer-events: none;
    stroke-width: 2;
    box-sizing: content-box;
    transition: 
        transform var(--duration-normal) var(--ease-out),
        background-color var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-out);
}

/* Watermark hover effect */
.tariff-card:hover .tariff-card__watermark {
    transform: scale(1.08);
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* Premium card icon - slightly larger */
.tariff-card--all .tariff-card__watermark {
    width: 40px;
    height: 40px;
}

/* ===== Card Header ===== */
.tariff-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    padding-right: 60px; /* Space for watermark icon */
}

.tariff-card__title {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    text-transform: uppercase;
    margin: 0;
}

.tariff-card__badge {
    flex-shrink: 0;
    padding: var(--space-1) var(--space-2);
    background: var(--accent-soft);
    color: var(--accent-color);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

/* ===== Card Description ===== */
.tariff-card__description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin: 0 0 var(--space-4);
    line-height: var(--leading-relaxed);
}

/* ===== Card Price ===== */
.tariff-card__price {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.tariff-card__price-value {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.tariff-card__price-currency {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.tariff-card__price-period {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

/* Loading state for price */
.tariff-card__price-value.is-loading {
    background: linear-gradient(
        90deg,
        var(--border-subtle) 25%,
        var(--border-accent) 50%,
        var(--border-subtle) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 6px;
    color: transparent;
    min-width: 100px;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ===== Card Features ===== */
.tariff-card__features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-4);
}

.tariff-card__feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-1) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-normal);
}

.tariff-card__feature-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    color: var(--accent-color);
    margin-top: 1px;
    stroke-width: 2.5;
}

/* Collapsed features toggle */
.tariff-card__features-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
    color: var(--text-muted);
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--duration-fast) ease;
}

.tariff-card__features-toggle:hover {
    color: var(--text-secondary);
}

.tariff-card__features-toggle-icon {
    width: 14px;
    height: 14px;
    transition: transform var(--duration-normal) var(--ease-out);
}

.tariff-card__features-toggle.is-expanded .tariff-card__features-toggle-icon {
    transform: rotate(180deg);
}

/* Hidden features */
.tariff-card__features--hidden {
    display: none;
}

.tariff-card__features--hidden.is-visible {
    display: block;
    animation: fadeIn var(--duration-normal) var(--ease-out);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Card Meta (Date) ===== */
.tariff-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding-top: var(--space-3);
    border-top: 1px solid var(--divider);
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.tariff-card__meta-icon {
    width: 14px;
    height: 14px;
    stroke-width: 2;
}

/* ===== Card CTA Button ===== */
.tariff-card__cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    height: var(--btn-height);
    margin-top: var(--space-4);
    padding: 0 var(--space-5);
    background: var(--accent-color);
    color: var(--text-inverse);
    font-family: var(--font-display);
    font-size: var(--btn-font-size);
    font-weight: 600;
    border: none;
    border-radius: var(--btn-radius);
    cursor: pointer;
    transition: 
        transform var(--duration-fast) var(--ease-out),
        box-shadow var(--duration-fast) var(--ease-out),
        background-color var(--duration-fast) ease;
}

.tariff-card__cta:hover {
    box-shadow: 0 4px 16px var(--accent-glow);
}

.tariff-card__cta:active {
    transform: scale(0.98);
}

.tariff-card__cta-icon {
    width: 18px;
    height: 18px;
    stroke-width: 2.5;
}

/* Selected button state */
.tariff-card.is-selected .tariff-card__cta {
    background: var(--accent-soft);
    color: var(--accent-color);
}

/* ===== Includes Section ===== */
.tariffs-includes {
    max-width: 480px;
    margin: var(--space-6) auto var(--space-4);
    padding: var(--space-5);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--card-radius);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
}

.tariffs-includes__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.tariffs-includes__title {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.tariffs-includes__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--hover-overlay);
    border-radius: 8px;
    transition: 
        background-color var(--duration-fast) ease,
        transform var(--duration-normal) var(--ease-out);
}

.tariffs-includes__toggle-icon {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
    transition: transform var(--duration-normal) var(--ease-out);
}

.tariffs-includes.is-expanded .tariffs-includes__toggle-icon {
    transform: rotate(180deg);
}

.tariffs-includes__list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--duration-slow) var(--ease-out);
}

.tariffs-includes.is-expanded .tariffs-includes__list {
    max-height: 200px;
    margin-top: var(--space-4);
}

.tariffs-includes__item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.tariffs-includes__item-icon {
    flex-shrink: 0;
    width: 14px;
    height: 14px;
    color: var(--plan-chat);
    stroke-width: 2.5;
}

/* ===== Responsive ===== */
@media (min-width: 768px) {
    .page-tariffs {
        padding: var(--space-6);
    }
    
    .tariffs-header {
        margin-bottom: var(--space-8);
    }
    
    .tariffs-header__title {
        font-size: var(--text-3xl);
    }
    
    .tariffs-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
        max-width: 840px;
    }
    
    /* Make "All inclusive" span full width */
    .tariff-card--all {
        grid-column: 1 / -1;
    }
    
    .tariffs-includes {
        max-width: 840px;
    }
}

/* ===== Focus States for Accessibility ===== */
.tariff-card:focus-visible {
    outline: none;
    box-shadow: 
        var(--glass-shadow-hover),
        0 0 0 3px var(--focus-ring);
}

.tariff-card__cta:focus-visible {
    outline: none;
    box-shadow: 
        0 4px 16px var(--accent-glow),
        0 0 0 3px var(--focus-ring);
}

.tariffs-includes__header:focus-visible {
    outline: none;
    border-radius: 8px;
    box-shadow: 0 0 0 3px var(--focus-ring);
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    .tariff-card,
    .tariff-card::before,
    .tariff-card__watermark,
    .tariff-card__cta,
    .tariffs-includes__toggle-icon,
    .tariffs-includes__list {
        transition: none;
    }
    
    .tariff-card__price-value.is-loading {
        animation: none;
    }
}